Machine for making glassware.



PATENTED DEC. 20, 1904.

0. M. zIiRN. MACHINE FOR MAKING GLASSWARB.

APPLICATION FILED MAE. 4., 1904.

4 SHEETS-SHEET 1.

KO MODEL.

' W1 III'VESSES: v

[NVENTOR 6% WWW? No. 777,876. PATENTED DEC. 20, 1904. G. M. ZURN.

MACHINE FOR MAKING GLASSWARE.

APPLICATION FILED MAR. Q, 1904. N0 MODEL.

4 SHEETS-SHEET Z.

PATENTED' DEG. 20, 1904.

C. M. ZURN. MACHINE FOR MAKING GLASSWARE.

APPLICATION FILED MAR. 4, 1904.

N0 MODEL.

4 SHEETS-SHEET 3 H M52 a w 3 4 j w M i1 25 E Hawk Q 2 3 .W 6 7 a 2 9 v iM I] a x a a w w E s 2 6 j Z 7. W W

PATENTE-D DEC. 20, 1904..

C. M. ZURN. MACHINE FOR MAKING GLASSWARE.

APPLICATION FILED MAR. 4, 1904.

4 SHEETS-SHEET 4.

N0 MODEL.

Afforney/ [AWE/V7012 Mai/i.

UNITED STATES Patented December 20, 1904.

PATENT OFFICE.

MACHINE FOR MAKING GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 777,876, dated December20, 1904.

Application filed March 4, 190a. Serial No. 196,503.

To all whmn it natty concern:

Be it known that I, CHARLES M. ZURN, a citizen of the United States,residing atBridgeton, in the county of Cumberland and State of NewJersey, have invented new and useful Improvements in Machines for MakingGlassware, of which the following is a specification.

This invention relates to glass-blowing machines suitable for themanufacture of bottles, jars, and the like, and particularly to thatclass thereof which have a rotary table carrying a plurality of moldssuccessively to the charging, pressing, blowing, and dischargingpositions where such operations are perform ed mainly by automaticmechanism.

The object of the invention is to produce an improved machine of thekind character ized particularly by improvements with respect to themeans for charging the mold, introducing a false bottom thereunder,depressing the plunger, and blowing the bottle or jar, such operationsbeing performed simultaneously upon successive molds as they are broughtaround by the rotation of the table.

In the accompanying drawings, Figures 1 and 2 are side elevationsdisclosing particularly the pressing and the blowing mechanism,respectively. Fig. 3 is a vertical section, partly broken away, throughthe pressing mechanism. Fig. 4 is a similar section through the blowingmechanism. Fig. 5 is a diagrammatic plan .view illustrating the variouspositions. Fig. 6 is a detail in plan of the sliding frame or carriagewhich operates the charger and which carries the false bottom.

Referring specifically to the drawings, 30 indicates the bed of themachine supported upon wheels 31, so that it may be moved to the placedesired. Projecting centrally from the bed is a hollow post or standard32, which is reinforced at the bottom by an outer shell 33, having atthe top an annular flange 34,- upon which the circular rotating table 2is carried, with ball bearings 35 between. The table may be rotated byhand or any other suitable means.

At 11 a stationary annular track is indicated, located slightly belowand projecting beyond the outer edge of the table 2. This trackissupported by standards 11 on the bed of the machine. The track has inthe upper face thereof a cam-groove 11, which effects the movement ofthe charger and false bottom in a manner to be hereinafter described.The course or curvature of the groove is related to the charging,pressing, blowing, and discharging positions, as illustrated in Fig. 5,to effect the proper and suitable movement of the apparatus. Aspring-latch 36, controlled by a treadle 37 engages a circular rack onthe under side of the table and holds it steady at rest during thepressing and blowing operations. Depression of the treadle releases thelatch and allows the table to be turned before the next operation.

The table is illustrated with six molds, giving two idle molds at'alltimes. The molds are indicated at 22, of the well-known split 4 variety,the halves being hinged together at the back upon a pin 22". Each moldis supported upon a frame comprising a plate 22", supported by standards22 on the rotary table. The molds are bottomless, and the plate 22' hasan opening 22 to permit the entry of the charger 4, into which thecharge of glass is placed at the charging position. This charger iscarried upon a threaded stem 3, having a round head 3, which travels inopposite inclined grooves 1, produced in the adjacent sides of a recessor slot between plates 1, forming part of a frame or carriage whichslides radially between guides 1 on the top of the table 2. The shape ofthe grooves is such that when the carriage is drawn out the charger islifted, and when the carriage is forced in or toward the central postthe charger is lowered. This action is positive, because the head 3 isengaged during both movements. The stem 3 is threaded into the charger 4and fixed by a jam-nut 3", so that the position of the charger t may bevaried to proper adjustment. At the outer end of each carriage is astandard 9, carrying at the upper end a sleeve 7 which receives the stem5 on thefalse bottom 5. This slides into and out the back wall of themold.

of the parts.

the stem 5 and working in a slot in the sleeve 7, assists in preservingthe proper alinement Projecting from the underside of the carriage is apin 10, having a round head which fits and travels in the groove 11. Asthe molds and the carriages are carried around by the rotary table thepins 10, working in the groove 11, produce radial movement of thecarriages, according to the shape of the groove, and this radialmovement effects theinsertion and witl'ldrawal of the false bottom 5 andthe lift and drop of the charger 4. The lift of the latter is effectedat the charging position, and it remains in the mold during thepressing, after which it drops, and as it drops the false bottom entersat the blowing position.

The pressing-plunger is indicated at 17, carried at the lower end of arod 16, which is supported and movable vertically in arms 16, projectingfrom the central post. The rod 16 also carries the mold-cover 16",connected by bolts 16 and springs 16 to the plate 16, which is heldbetween jam-nuts 16 on the threaded portion of the rod 16. As the flangedescends the cover fits in and upon the top of the mold, closing thesame tightly. The springs insure a tight lit and also allow the plungerto continue its descent somewhat further. Movement of the rod 16 iseffected by a hand-lever 15, connected to arock-shaft 15, supported inbrackets 15, projecting from the central post and connected by a lever15 and links 15 to a collar on the rod 16.

The blowinghead is indicated at 40, of known construction, having anautomatic valve which opens when the head strikes the mold. Theparticular construction of the head is immaterial, and no extendeddescription thereof is believed to be necessary. It is carried at thelower end ofa pipe41, which may receive air from any suitableconnections.

The tube slides vertically in guide-arms 42, projecting from the centralpost, and is normally lifted by a spring 43. It is also connected by anarm 20 to the rod 16. When the rod is depressed, the tube andblowinghead are also depressed, whereby as one mold is blown thefollowing mold is pressed.

.It is believed that the operation of the machine will be clearlyevident from the above description; but it may be summarized as follows:The charger being lilled at the charging position and the mold beingclosed around the same, the table is rotated to carry the mold to thepressing position, where the plunger is depressed by the means abovedescribed. This forces the molten glass out of the charger and into themold, and upon rotation of the table to the blowing position the chargeris withdrawn and the plate 5 is entered to form the bottom of the mold.The bottle or jar is then blown, which action, as stated before, is

' simultaneous with the pressing of the following mold, and furthermovement of the table carries the parts to the discharging positionwhere the article is removed, after which the false bottom is retractedand the charger lifted for the succeeding operation.

What Iclaim as new, and desire to secure by Letters Patent, is

1. In a machine for making glassware, the combination with a movabletable, a plurality of molds carried thereby, and pressing and blowingmechanisms to which the molds are respectively movable, of chargersmovable automatically into and out of the molds by the movement of thetable, and bottoms for the molds removable when the chargers areentered.

2. In a machine for making glassware, the combination with a movabletable, a plurality of molds carried thereby, chargers movable into andout of the molds, and pressing and blowing mechanisms to which the moldsare severally movable, of bottoms for the molds, automatically actuatedby the movement of the table to enter the molds when the chargers arewithdrawn and withdraw from the molds when the chargers are enteredtherein.

3. In a machine for making glassware, the combination with a rotatabletable and molds carried thereby, of chargers movable vertically into andout of the molds, a cam-track around the table, and radially-movableframes on the table, engaging with the cam and having inclined supportsfor the chargers, substantially as and for the purpose specified.

4i. In a machine for making glassware, the combination with a rotatabletable and molds carried thereby, of a cam-track around the table, framesmovable radially on the table and actuated by the cam, and chargers andmold-bottoms supported by the frames, the supports for the chargersbeing inclined to convert the radial movement of the frames to verticalmovement of the chargers, and the bottoms being arranged to work in orout of the molds as the frames are moved.

5. In a machine for making glassware, the combination with a rotatabletable, and a camtrack around the same, of molds and radiallyslidableframes carried by the table, said frames having inclines under the moldsand projections engaging the track, chargers supported on the inclinesand movable into and out of the molds by the slide of the frames, andbottoms connected to the frames and movable therewith into and out ofthe molds.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES M. ZURN.

WVitnesses:

. LUTHER C. MEYERS, PHILIP M. Minutes.

